Daisy Khan, the executive director of the American Society for Muslim Advancement, said on Tuesday that she and her husband, Imam Feisal Abdul Rauf, two co-founders whose involvement in the controversial community center plan was curtailed this year after a falling out with their real estate partner, might develop a new project that was “larger in concept” than what is now proposed at 51 Park Place.

The new project would be interfaith in character, rather than predominantly Islamic, she said, and it would include a center for inter-religious conflict resolution.

Ms. Khan’s comments, made at a luncheon held by the women’s magazine More and attended by reporters, were the first in which the couple indicated a willingness to put their names behind a different religious mission in the city.

“Once we are ready to announce our new vision, we will talk to the property owner and see if it is the right location for us,” she said, referring to Sharif el-Gamal, the real estate developer and onetime protégé of Mr. Abul Rauf’s. Mr. Gamal announced in January that Ms. Khan and the imam, who first conceived the idea of a downtown Muslim community center, would no longer speak or raise money for the planned project, known as Park51, though the imam would remain on its board of directors.

“We had the vision. We still have the dream,” Ms. Khan said. “The location is not the dream, my friend.”

A spokesman for Mr. Gamal said the developer had no comment.

Whether either alternative comes to fruition will depend on the ability of each camp to raise the estimated $100 million in public and private funds needed. Since plans for Park51 were announced last summer, and drew angry protests from some politicians and families of 9/11 victims who considered it insensitive to build a Muslim center so close to ground zero, no management staff has been hired, no members have been named to the project’s board and no money has been raised.

Park51 was registered as a charitable organization with the state attorney general’s office. But its application to the Internal Revenue Service for designation as a tax-exempt organization — crucial to its ability to solicit tax-deductible donations — has been under review for six months without a decision.

The rift between the two factions is partly personal, and partly based on differences of vision, spokesmen for the two sides have said. Mr. Abdul-Rauf and Ms. Khan initially conceived the project, which they referred to as Cordoba House, as a community center for the neighborhood grafted to a kind of world headquarters for interfaith dialogue — a place where tourists from around the globe might come to learn about other people’s religions.

Mr. Gamal, a businessman, had always favored a more down-to-earth approach, focused on providing much-needed downtown facilities like an indoor swimming pool, and prayer space for the large population of Muslims who work in the financial district.

On Tuesday, Ms. Khan said that since last summer, she and her husband had been meeting privately with family members of 9/11 victims and first responders in an effort to understand the source of some of the opposition to the original idea. She said that as a result of those meetings, the story of the 9/11 families “will be housed in our center.”

A version of this article appears in print on March 30, 2011, on page A19 of the New York edition with the headline: Planners Of Mosque Considering New Project. Order Reprints|Today's Paper|Subscribe